EP4246979A3 - Method and apparatus for inter prediction in video coding system - Google Patents

Method and apparatus for inter prediction in video coding system Download PDF

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Publication number
EP4246979A3
EP4246979A3 EP23185244.3A EP23185244A EP4246979A3 EP 4246979 A3 EP4246979 A3 EP 4246979A3 EP 23185244 A EP23185244 A EP 23185244A EP 4246979 A3 EP4246979 A3 EP 4246979A3
Authority
EP
European Patent Office
Prior art keywords
candidate
current block
deriving
motion information
motion vectors
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
EP23185244.3A
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German (de)
French (fr)
Other versions
EP4246979A2 (en
Inventor
Jaeho Lee
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
LG Electronics Inc
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LG Electronics Inc
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Filing date
Publication date
Application filed by LG Electronics Inc filed Critical LG Electronics Inc
Publication of EP4246979A2 publication Critical patent/EP4246979A2/en
Publication of EP4246979A3 publication Critical patent/EP4246979A3/en
Pending legal-status Critical Current

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/50—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using predictive coding
    • H04N19/503—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using predictive coding involving temporal prediction
    • H04N19/51—Motion estimation or motion compensation
    • H04N19/513—Processing of motion vectors
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/50—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using predictive coding
    • H04N19/503—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using predictive coding involving temporal prediction
    • H04N19/51—Motion estimation or motion compensation
    • H04N19/513—Processing of motion vectors
    • H04N19/517—Processing of motion vectors by encoding
    • H04N19/52—Processing of motion vectors by encoding by predictive encoding
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/10—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding
    • H04N19/102—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the element, parameter or selection affected or controlled by the adaptive coding
    • H04N19/103—Selection of coding mode or of prediction mode
    • H04N19/105—Selection of the reference unit for prediction within a chosen coding or prediction mode, e.g. adaptive choice of position and number of pixels used for prediction
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/10—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding
    • H04N19/102—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the element, parameter or selection affected or controlled by the adaptive coding
    • H04N19/129—Scanning of coding units, e.g. zig-zag scan of transform coefficients or flexible macroblock ordering [FMO]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/10—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding
    • H04N19/102—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the element, parameter or selection affected or controlled by the adaptive coding
    • H04N19/132—Sampling, masking or truncation of coding units, e.g. adaptive resampling, frame skipping, frame interpolation or high-frequency transform coefficient masking
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/10—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding
    • H04N19/169—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the coding unit, i.e. the structural portion or semantic portion of the video signal being the object or the subject of the adaptive coding
    • H04N19/17—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the coding unit, i.e. the structural portion or semantic portion of the video signal being the object or the subject of the adaptive coding the unit being an image region, e.g. an object
    • H04N19/176—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the coding unit, i.e. the structural portion or semantic portion of the video signal being the object or the subject of the adaptive coding the unit being an image region, e.g. an object the region being a block, e.g. a macroblock
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/42—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals characterised by implementation details or hardware specially adapted for video compression or decompression, e.g. dedicated software implementation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/44—Decoders specially adapted therefor, e.g. video decoders which are asymmetric with respect to the encoder
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/50—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using predictive coding
    • H04N19/503—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using predictive coding involving temporal prediction
    • H04N19/51—Motion estimation or motion compensation
    • H04N19/527—Global motion vector estimation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/50—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using predictive coding
    • H04N19/503—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using predictive coding involving temporal prediction
    • H04N19/51—Motion estimation or motion compensation
    • H04N19/537—Motion estimation other than block-based
    • H04N19/54—Motion estimation other than block-based using feature points or meshes
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/50—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using predictive coding
    • H04N19/503—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using predictive coding involving temporal prediction
    • H04N19/51—Motion estimation or motion compensation
    • H04N19/573—Motion compensation with multiple frame prediction using two or more reference frames in a given prediction direction
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/70—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals characterised by syntax aspects related to video coding, e.g. related to compression standards

Abstract

The present disclosure relates to a method by which a decoding apparatus performs video coding, comprising the steps of: generating a motion information candidate list for a current block; selecting one candidate from among those included in the motion information candidate list; deriving control point motion vectors (CPMVs) of the current block based on the selected candidate; deriving sub-block-unit or sample-unit motion vectors of the current block based on the CPMVs; deriving a predicted block based on the motion vectors; and reconstructing a current picture based on the predicted block, wherein the motion information candidate list includes an inherited affine candidate, the inherited affine candidate is derived based on candidate blocks coded by affine prediction, from among spatial neighboring blocks of the current block, and the inherited affine candidate is generated up to a pre-defined maximum number.
EP23185244.3A 2018-04-24 2019-04-24 Method and apparatus for inter prediction in video coding system Pending EP4246979A3 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US201862662175P 2018-04-24 2018-04-24
EP19793735.2A EP3780617B1 (en) 2018-04-24 2019-04-24 Method and apparatus for inter prediction in video coding system
PCT/KR2019/004957 WO2019209026A1 (en) 2018-04-24 2019-04-24 Method and apparatus for inter prediction in video coding system

Related Parent Applications (2)

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EP19793735.2A Division EP3780617B1 (en) 2018-04-24 2019-04-24 Method and apparatus for inter prediction in video coding system
EP19793735.2A Division-Into EP3780617B1 (en) 2018-04-24 2019-04-24 Method and apparatus for inter prediction in video coding system

Publications (2)

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EP4246979A2 EP4246979A2 (en) 2023-09-20
EP4246979A3 true EP4246979A3 (en) 2023-11-01

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EP23185244.3A Pending EP4246979A3 (en) 2018-04-24 2019-04-24 Method and apparatus for inter prediction in video coding system

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US (3) US11109058B2 (en)
EP (2) EP3780617B1 (en)
KR (2) KR20230109772A (en)
CN (4) CN112204980B (en)
ES (1) ES2960029T3 (en)
FI (1) FI3780617T3 (en)
HR (1) HRP20231300T1 (en)
HU (1) HUE063886T2 (en)
PL (1) PL3780617T3 (en)
SI (1) SI3780617T1 (en)
WO (1) WO2019209026A1 (en)

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KR102463478B1 (en) * 2018-01-26 2022-11-04 에이치에프아이 이노베이션 인크. Affine inter prediction method and apparatus for video coding system
WO2019240493A1 (en) * 2018-06-12 2019-12-19 한국전자통신연구원 Context adaptive binary arithmetic coding method and device
CN111953997A (en) * 2019-05-15 2020-11-17 华为技术有限公司 Candidate motion vector list obtaining method and device and coder-decoder

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US20170094307A1 (en) * 2012-01-20 2017-03-30 Sun Patent Trust Methods and apparatuses for encoding and decoding video using temporal motion vector prediction
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Publication number Publication date
US11622125B2 (en) 2023-04-04
CN116708819A (en) 2023-09-05
US20230224490A1 (en) 2023-07-13
CN116708818A (en) 2023-09-05
US11943470B2 (en) 2024-03-26
KR102553665B1 (en) 2023-07-10
US20210344949A1 (en) 2021-11-04
ES2960029T3 (en) 2024-02-29
HUE063886T2 (en) 2024-02-28
US11109058B2 (en) 2021-08-31
EP3780617A4 (en) 2021-02-17
WO2019209026A1 (en) 2019-10-31
HRP20231300T1 (en) 2024-02-02
KR20230109772A (en) 2023-07-20
EP4246979A2 (en) 2023-09-20
US20210037257A1 (en) 2021-02-04
EP3780617B1 (en) 2023-09-13
KR20200122395A (en) 2020-10-27
CN112204980A (en) 2021-01-08
PL3780617T3 (en) 2024-02-05
EP3780617A1 (en) 2021-02-17
CN116708817A (en) 2023-09-05
CN112204980B (en) 2023-07-21
FI3780617T3 (en) 2023-10-16
SI3780617T1 (en) 2023-11-30

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